DE69606139T2 - METHOD AND DEVICE FOR NOISE REDUCTION IN COMPRESSED IMAGE DATA - Google Patents

METHOD AND DEVICE FOR NOISE REDUCTION IN COMPRESSED IMAGE DATA

Info

Publication number
DE69606139T2
DE69606139T2 DE69606139T DE69606139T DE69606139T2 DE 69606139 T2 DE69606139 T2 DE 69606139T2 DE 69606139 T DE69606139 T DE 69606139T DE 69606139 T DE69606139 T DE 69606139T DE 69606139 T2 DE69606139 T2 DE 69606139T2
Authority
DE
Germany
Prior art keywords
image data
quantization error
encoding
noise reduction
compressed image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69606139T
Other languages
German (de)
Other versions
DE69606139D1 (en
Inventor
R Reuman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polaroid Corp
Original Assignee
Polaroid Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polaroid Corp filed Critical Polaroid Corp
Publication of DE69606139D1 publication Critical patent/DE69606139D1/en
Application granted granted Critical
Publication of DE69606139T2 publication Critical patent/DE69606139T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Abstract

An image encoding/decoding apparatus for performing transform coding by a method in which blocking artifacts are suppressed or eliminated is disclosed in which encoded data, transmitted by the encoding apparatus, is converted into received image data terms which are subsequently overlap transformed into frequency coefficients for modification by means of a filtering operation utilizing a quantization error matrix. The quantization error matrix can be derived from quantization error data generated in the encoding unit, or can be provided as a look-up table in the decoding unit. The modified frequency coefficients are converted into reduced-noise image data terms for reconstruction into a digital image.
DE69606139T 1995-05-15 1996-05-15 METHOD AND DEVICE FOR NOISE REDUCTION IN COMPRESSED IMAGE DATA Expired - Fee Related DE69606139T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/441,372 US5629778A (en) 1995-05-15 1995-05-15 Method and apparatus for reduction of image data compression noise
PCT/US1996/006888 WO1996037077A1 (en) 1995-05-15 1996-05-15 Method and apparatus for reduction of image data compression noise

Publications (2)

Publication Number Publication Date
DE69606139D1 DE69606139D1 (en) 2000-02-17
DE69606139T2 true DE69606139T2 (en) 2000-06-21

Family

ID=23752623

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69606139T Expired - Fee Related DE69606139T2 (en) 1995-05-15 1996-05-15 METHOD AND DEVICE FOR NOISE REDUCTION IN COMPRESSED IMAGE DATA

Country Status (8)

Country Link
US (1) US5629778A (en)
EP (1) EP0771507B1 (en)
JP (1) JPH10503359A (en)
KR (1) KR970705306A (en)
AT (1) ATE188829T1 (en)
CA (1) CA2194574A1 (en)
DE (1) DE69606139T2 (en)
WO (1) WO1996037077A1 (en)

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US20060170956A1 (en) 2005-01-31 2006-08-03 Jung Edward K Shared image devices
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US20060285150A1 (en) * 2005-01-31 2006-12-21 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Regional proximity for shared image device(s)
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US8606383B2 (en) 2005-01-31 2013-12-10 The Invention Science Fund I, Llc Audio sharing
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US8233042B2 (en) * 2005-10-31 2012-07-31 The Invention Science Fund I, Llc Preservation and/or degradation of a video/audio data stream
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US9621749B2 (en) 2005-06-02 2017-04-11 Invention Science Fund I, Llc Capturing selected image objects
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Also Published As

Publication number Publication date
DE69606139D1 (en) 2000-02-17
US5629778A (en) 1997-05-13
CA2194574A1 (en) 1996-11-21
ATE188829T1 (en) 2000-01-15
JPH10503359A (en) 1998-03-24
WO1996037077A1 (en) 1996-11-21
EP0771507A1 (en) 1997-05-07
KR970705306A (en) 1997-09-06
EP0771507B1 (en) 2000-01-12

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